Nuclear Theory

Title:Systematics of $α$--nucleus optical potentials

Abstract: Double--folded optical $\alpha$--nucleus potentials can be used to calculate
elastic scattering cross sections in a wide mass-- and energy region. Because
of the systematic behavior of the potential parameters we are able to obtain
reliable optical potentials for astrophysically relevant reactions even without
scattering data in low--energy region. As example we analyze the capture
reaction ${^{144}{\rm Sm}}(\alpha,\gamma){^{148}{\Gd}}$.